Surgeon&#39;s operating-table.



9- 8321680 g PATENTED 001. 9, 1906.

F. F. LAWRENCE. 5 SURGEONS OPERATING TABLE.

APPLICATION FILED 00T.9. 1902.

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FLORUS F. LAWRENCE, OF COLUMBUS, OHIO.

SURGEONS OPERATING-TABLE.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed October 9, 1902. Serial No. 126,389.

To all whmn it may concern:

Be it known that I, FLonUs F. LAWRENCE, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in SurgeonsOperating-Tables, of which the following is a specification.

My invention relates to the improvement of surgeons operating-tables;and the objects of my invention are to provide an improved table of thisclass of superior construction and arrangement of parts, to provideimproved means for permittinga rotary movement of the table-top and forlocking the same against rotation, to provide in con junction therewithimproved means for adjustably supporting the table-top upon thesupporting-frame, and to produce other improvemcnts the details of whichwill be more fully pointed out hereinafter. These objects I accomplishinthe manner illustrated in the accompanying drawings, in which Figure 1is a side elevation of my improved table, showing a portion of one endbroken away. Fig. 2 is an end view of the same. Fig. 3 is an under sideview of a portion of the table with the leg-frame removed, and Fig. 4 isa detail view showing the inner face of one of the keepers which Iemploy in the manner hereinafter described in connection with two of thelegs of the table.

Similar numerals refer to similar parts throughout the several views.

In carrying out my invention I employ a supporting or leg framecomprising two oppositely-arranged and substantially yoke-likeframe-bars 1, the upper portion of each of which is provided withaprojecting ear or lug 2, with which lugs are pivotally connected theparallel side bars 3 of a frame 3, which consists of said side barsunited by transverse bars 4 and 5. The side bars 3 are preferably in thenature of angle-bars and at what I will term their forward ends areconnected by a transverse rod 6. They are likewise connected near thecenters of their lengths with a transverse rod 7, the ends of which bearpivotally in the lugs 2. Rising from the frame 3 are short supportingposts or pins 7 with the upper ends of which is connected the under sideof a lower turntable ring 8, upon which is rotatably mounted an upperring 9, this upper ring being connected through the medium of verticalpins or posts 10 with the under side of an oblong table-top 11. Whilethese rings 9 and 8 are, as shown in the drawings, supported one uponthe other, they may be in the nature of channel-b ars incross-section,thus permitting the upper ring to run within the lowerring. In the construction shown I have provided ring-connecting clips oryokes 12, the lower sides of which are secured to the under side of thelower ring 8 and the upper sides of which loosely embrace the upper andinner sides of the upper ring, these clips serving to retain said ringsin their relative positions.

In the periphery of the lower ring I provide at intervals recesses ornotches 13. Depending from the under side of the table-top at a pointabove the upper ring is a suitable pin 14, with which is pivotallyconnected the inner end of a horizontally-disposed lever 15, this leverterminating in a downturned handle portion 15 and. having its bodyportion curved outwardly, as shown more clearly in Fig. 3 of thedrawings. Formed with the inner side of the lever-body at the center ofits curved portion and extending downward from said lever is a lug ordog 16, which has projecting inwardly therefrom a tooth 17, said toothbeing adapted to enter the desired one of the notches 13 of saidlowerring'8. The lever is normally pressed inward, so as to facilitatethe engagement of the tooth 17 with the notches of the ring 8 by meansof a coiled spring 18, one end of which is connected -with said leverand the remaining end of which is connected with a pin on the upper sideof the upper ring 9. I also provide the upper side of said upper ring 9with an outwardly-extending bar 19, which forms a bearing for the outerportion of the lever 15. As shown in Fig. 3 of the drawings, the lowerring 8 is connected with the frame cross-bar 5 and an upper ringcross-bar 20 through the medium of a bar 21, the connection with thebar- 20 being pivotal.

At the forward end portion of each of the frame-bars 3 is pivoted theupper or outer end of a curved bar 22, the rear side of which istoothed, as indicated at 23. The curved rack-bars thus formed andsupported extend downward and rearward between the inner sides of theforward leg portions 1 of the leg-frame 1 and keeper-brackets 24, whichproject from the inner sides of said leg portions. The upper arm of eachof said brackets is, as shown more clearly in Fig. 4 of the drawings,formed with a downwardly-projecting tooth portion 25, and through theupon the lower ring 8.

lower portions of, the keepers 24 passes loosely a shaft 26, said shaftbeing journaled in the leg portions 1 and carrying within each of thekeepers a cam-body 27, said cam being adapted when properly turned topress therack-bars 22 upward and cause an engagement of notches or teeththereof with the teeth 25 of the keepers. X From the constructiondescribed it will be observed that the table-top may be rotated upon itssupport by first pressing the lever 15 outward until the tooth 17 of itsdog is out of engagement with a recess of the lower ring 8, and in theoperation of rotating said table it is obvious that the upper ring 9will turn In order to tip the table-top until the same stands at adesired angle from a horizontal position, it will be understood that therod or shaft 26 is turned until the longer portions of the cams 27 aredropped downward until the teeth of the bars 23 are out of engagementwith the teeth 25 of the keepers 24, after which the table may be tippedto the desired position and locked in this tipped position by againturning the longer portions of the cams up- Ward. It is obvious thatwhen the table-top is turned at right angles with the position shown inthe drawings the above-described tipping operation will result in saidtable-top being tipped laterally and that the tipping of the samesidewise or endwise will depend upon the position of said table-top withrelation to its support at the time of the tipping operation.

Having now fully described my invention,

what I claim, and desire to secure by Letters Patent, is

1. A table of the class described, comprising in its entirety, asupporting-frame, a tilting frame pivotally mounted on saidsupporting-frame, means for locking said tilting frame at any angle atwhich it may be set with relation to said supporting-frame, a sectionalturn-table, comprising superimposed annuli coextensive throughout, thelowermost annulus being rigidly secured to said tilting frame and beingprovided with an inwardly-projecting bar following the radial linethereof, the uppermost annulus being provided with a transverse barfollowing the diametrical line thereof and pivoted at a central point tosaid inwardly-projecting bar, a table rigidly mounted on said uppermostannulus, said lowermost annulus being formed at regular intervals with aseries of recesses in its periphery and a lever pivoted at its end tothe underneath side of said table, said lever being provided with adepending tooth for engagement with any one of said recesses and beingspring-held into locking engagement with said lowermost annulus.

2. A table of the class described, comprising in its entirety asupporting frame, a tilting frame pivotally mounted on saidsupporting-frame, means for locking said tilting frame at any angle atwhich it may be set with relation to said supporting-frame, a sectionalturn-table comprising superimposed annuli coextensive throughout andhavin their peripheries in annular alinement, the lowermost annulusbeing rigidly secured to said tilting frame and being provided with aninwardly-projecting bar following the radial line thereof, the uppermostannulus being provided with a transverse bar following the diametricalline thereof and pivoted at a central point to said inwardly-projectingbar, said lowermost annulus being provided with a plurality ofupwardly-extending inturned flanges loosely engaging said uppermostannulus and serving as retalning means there for in its superimposedrelation, a table rigidly mounted on said uppermost annulus, saidlowermost annulus being formed at regular intervals with a series ofrecesses in its periphery, and a lever pivoted at its end to theunderneathside of the table, said lever being provided with a dependingtooth for engagement with any one of said recesses and being spring-heldagainst said lowermost annulus, whereby said tooth will enter intolocking engagement with any one of the peripheral recesses of saidlowermost annulus.

FLORUS F. LAWRENCE. In presence of A. L. PHELPS, W. L. MORROW.

